Fragmentation of Light Initial Quarks into Charm Measons in e<SUP>+</SUP>e<SUP>－</SUP> Annihilation

JIN Yi; LI Shi-Yuan; XIE Qu-Bing

Chinese Physics C> 2003, Vol. 27> Issue(10) : 852-856

Fragmentation of Light Initial Quarks into Charm Measons in e⁺e^－ Annihilation

School of Physics and Microelectronics,Shandong University,Ji'nan 250100,China

Abstract
HTML
Reference
Related

PDF

Abstract：
We study the process that the light initial quarks produced in e+ e- annihilation combine with the c from glu-on splitting to form D's (D-+D6-+D0) or D 's(D-*+ Ds*-+D*0). The 'light + heavy' bound state is described by light-cone wavefunction. The contribution of this process to D (D ) production at Z⁰ pole is much larger compared with that in lower energies (e.g. 10.6GeV) . For this special process, the invariant mass of D(D) and the charm had-ron fragmented from the c quark has a unique spectrum which peaks near 2 MB if we constrain the D(D*) from all processes with energy larger than 20GeV. It is also noticeable that the produced D* in this process is dominantly longitudinally polarized, which is consistent with the OPAL data.

References

[1]

Bodwin G T, Braaten L, Lepage G P. Phys. Rev., 1995, D51:1125; 1997, D55:5853(E)2 Lee J. hep–ph/0208238 3 LI Shi–Yuan, XIE Qu–Bing, WANG Qun. Phys. Lett. , 2000, B482:654 Bodwin G T, Lee J. hep–ph/0212352, hep–ph/0212181 ; LIU K Y, HE Z G, CHAO K T. hep–ph/02111815 Abe K et al (Belle Collaboration). Phys. Rev. Lett., 2002, 89: 142001; Choi S K et al (Belle Collaboration). Phys. Rev. Lett., 2002, 89:102001 ; 89:129901(E)6 Braaten E, JIA Yu. Mehen Thomas. Phys. Rev. Lett., 2002, 89: 1220027 Aitala E M et al (E791 Collaboration). Phys. Lett., 1996, B371: 157; 1997, 411:230; Alves G A et al (E769 Collaboration). Phys. Rev. Lett., 1994, 72: 812; 1996, 77: 2392; Adamovich M et al (BEATRICE Collaboration). Nucl. Phys. , 1997 ; 11495 : 3 ; Adamovich M et al (WA82 Collaboration). Phys. Lett., 1993, B305:4028 Braaten E, JIA Yu. Mehen Thomas. Phys. Rev., 2002, D66:0340039 Braaten E, JIA Yu. Mehen Thomas. Phys. Rev., 2002, D66:01400310 CHANG Chao–Hsi, MA Jian–Ping, SI Zong–Guo. hep–ph/030125311 Grozin A G, Neubert M. Phys. Rev., 1997, D55:27212 Beneke M, Feldmann T. Nucl. Phys., 2001, B592:313 Sjostrand T. Comput. Phys. Commun., 1986, 39:34714 Particle Data Group, Hagiwara K et al. Phys. Rev., 2002, 1966: 01000115 Aekerstaff K et al (OPAL Collaboration). Z. Phys., 1997, C74:43716 CHEN E–Sheng. HEPNP, 1993, 17(3) :252(in Chinese)(陈鄂生.高能物理与核物理,1993,17(3) :252)17 WANG Qun, XIE Qu–Bing, CHEN E–Sheng. HEPNP, 1994, 18(10) :902(in Chinese)(王群,谢去病,陈鄂生.高能物理与核物理,1994,18(10) :902)18 XU Qing–Hua, LIU Chun–Xiu, LIANG Zuo–Tang. Phys. Rev., 2001, D63:111301(R)

[1]	LIU Xi-Ming , SUN Xu-Bin . Strangeness Suppression in e⁺e^－ Light Flavour Jets. Chinese Physics C, 2007, 31(2): 138-142.
[2]	LIU Xi-Ming , WANG Yong-Gang , ZHANG Xue-Yao . Hadrons Production from Light Quark Jets in e^＋e^－ Annihilation. Chinese Physics C, 2004, 28(1): 11-16.
[3]	HUANG Jin-Shu , PAN Qun-Na , SONG Tai-Ping , LU Lin-Xia . Associate Production of the top-Pion with b Quark Pair in TC2 Model at High Energy e⁺e^－ Colliders. Chinese Physics C, 2003, 27(7): 571-573.
[4]	BES Collaboration . Measurement of Production Cross Section of D_s⁺D_s^－ in e⁺e^－ Annihilation at the Center-of-Mass Energy of s=4.03GeV. Chinese Physics C, 2001, 25(6): 465-475.
[5]	Si Zongguo , Xie Qubing . Studying e⁺e^－→h′s Process by Event Generator of Quark Combination Model. Chinese Physics C, 1999, 23(5): 445-458.
[6]	Chen Esheng , Wang Qun , Xie Qubing , Chen Yan . Multiplicity of D^*± in e⁺e^－ Annihilation at s=29─35Gev. Chinese Physics C, 1998, 22(3): 234-240.
[7]	Lu Gongru , Li Haibo , Yang Yadong . One Loop PGBs Effects on tt Production in High Energy e⁺e^- Annihilation. Chinese Physics C, 1996, 20(6): 522-532.
[8]	Liu Ximing . The Final State Multiplicity Rates of η and η＇IN e⁺e^－ Annihilation at High Energy. Chinese Physics C, 1994, 18(12): 1091-1095.
[9]	He Jingtang , Zhu Guoyi , La Yusheng , Dong Xiaoli . Search for Light Neutral Particle in Low Energy e⁺e^－ Annihilation. Chinese Physics C, 1994, 18(5): 404-408.
[10]	Wang Qun , Xie Qubing . Production Percentages of L=1 Excited Baryons in e⁺e^－ Annihilation. Chinese Physics C, 1994, 18(9): 807-812.
[11]	Liu Ximing . Difference of Particle Multiplicities Between Quark Jets of Different Flavors in e⁺e^－ Annihilation. Chinese Physics C, 1994, 18(9): 829-835.
[12]	CHEN E-Sheng . Average Yields of Long-Lived Charged Particles in High Energy e⁺e^－ Annihilation. Chinese Physics C, 1993, 17(3): 252-261.
[13]	CHEN E-Sheng , LI Ming-Ming . Yields of Charmed and Beautiful Mesons in e⁺e^－ Annihilation at s=10—178GeV 的e⁺e^-. Chinese Physics C, 1991, 15(11): 981-990.
[14]	LIU Xi-Ming , WU Hua-You . THE FRAGMENTATION OF GLUON OF GLUON IN e⁺e^－ ANNIHILATION. Chinese Physics C, 1990, 14(11): 1001-1006.
[15]	LIU Xi-Ming . THE FRAGMENTATION SCHEMES IN e⁺e^－ ANNIHILATION. Chinese Physics C, 1990, 14(1): 31-35.
[16]	CHEN E-Sheng , XIE Qu-Bing . THE RATIO OF CHARMED BARYON TO MESON IN e⁺e^－ ANNIHILATION. Chinese Physics C, 1990, 14(4): 319-324.
[17]	LIU Xi-Ming . BARYON PRODUCTION IN e⁺e^－ ANNIHILATION. Chinese Physics C, 1989, 13(9): 803-807.
[18]	CHEN Zhi-Jiang , XIE Qu-Bing , MA Wen-Jun . THE NEAREST CORRELATION IN RAPIDITY AND THE MULTIPLICITY DISTRIBUTION IN e⁺e^－ ANNIHILATION. Chinese Physics C, 1988, 12(6): 742-748.
[19]	QIU Zhong-Ping , CAI Xu . CYLINDRICAL BAG MODEL OF PARTICLE PRODUCTION IN HIGH ENERGY e⁺e^－ ANNIHILATION. Chinese Physics C, 1988, 12(5): 708-711.
[20]	LIANG Zuo-Tang , XIE Qu-Bing . MULTIPLICITY DISTRIBUTION IN e⁺e^－ ANNIHILATION. Chinese Physics C, 1987, 11(6): 840-843.

Access

Get Citation

JIN Yi, LI Shi-Yuan and XIE Qu-Bing. Fragmentation of Light Initial Quarks into Charm Measons in e⁺e^－ Annihilation[J]. Chinese Physics C, 2003, 27(10): 852-856.

JIN Yi, LI Shi-Yuan and XIE Qu-Bing. Fragmentation of Light Initial Quarks into Charm Measons in e⁺e^－ Annihilation[J]. Chinese Physics C, 2003, 27(10): 852-856. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2003-02-17
Revised: 1900-01-01

Article Metric

Article Views(3237)
PDF Downloads(631)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Fragmentation of Light Initial Quarks into Charm Measons in e⁺e^－ Annihilation

Corresponding author: JIN Yi,

School of Physics and Microelectronics,Shandong University,Ji'nan 250100,China

Received Date: 2003-02-17

Accepted Date: 1900-01-01

Available Online: 2003-10-05

Abstract: We study the process that the light initial quarks produced in e+ e- annihilation combine with the c from glu-on splitting to form D's (D-+D6-+D0) or D 's(D-*+ Ds*-+D*0). The 'light + heavy' bound state is described by light-cone wavefunction. The contribution of this process to D (D ) production at Z⁰ pole is much larger compared with that in lower energies (e.g. 10.6GeV) . For this special process, the invariant mass of D(D) and the charm had-ron fragmented from the c quark has a unique spectrum which peaks near 2 MB if we constrain the D(D*) from all processes with energy larger than 20GeV. It is also noticeable that the produced D* in this process is dominantly longitudinally polarized, which is consistent with the OPAL data.

HTML

Reference (1)

Fragmentation of Light Initial Quarks into Charm Measons in e⁺e^－ Annihilation

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Fragmentation of Light Initial Quarks into Charm Measons in e⁺e^－ Annihilation

Corresponding author: JIN Yi,

HTML

目录

Fragmentation of Light Initial Quarks into Charm Measons in e+e－ Annihilation

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Fragmentation of Light Initial Quarks into Charm Measons in e+e－ Annihilation

Corresponding author: JIN Yi,

HTML

目录

Fragmentation of Light Initial Quarks into Charm Measons in e⁺e^－ Annihilation

Fragmentation of Light Initial Quarks into Charm Measons in e⁺e^－ Annihilation